The docs have a mechanism to accept and display user comments.
it works via a package called "comdoc", written by Henry Minsky
Each doc page has a footer which contains a link to include comments, which looks like this
The file docs/inludes/commentwidget.js points to a comdoc server which manages the comments.
Currently, the comdoc server is comments.openlaszlo.org
The comdoc package is checked into svn in the tools/comdoc directory.
On comments.openlaszlo.org, the comdoc directory is checked out in /var/www/html/comdoc
There are instructions in the comdoc directory to configure it via it's defs.php file.
The defs.php file also contains the list of reviewer email addresses. When a comment is submitted, it is sent to a reviewer picked from the list, and the reviewer can then approve or reject the submission by clicking on a link in the email message.
Comments are stored in /var/www/html/comdoc/comments on comments.openlaszlo.org